<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>鼠标事件</title>
    <style>
        div{width: 200px;height: 200px; background-color: red }

    </style>


</head>
<body>

<div onmouseover="overfn()" onmouseout="outfn()"
onmousedown="downfn()" onmouseup="upfn()" onmousemove="movefn()"></div>
<script>
    function overfn(){
        console.log("鼠标移入")
    }
    function outfn(){
        console.log("鼠标移出")

    }
    function downfn(){
        console.log("鼠标按下")
    }
    function upfn(){
        console.log("鼠标抬起")
    }
    function movefn(){
        console.log("鼠标移动")
    }

</script>


</body>
</html>